Side by side

Like the over and under, there are two barrels, however instead of being arranged in a vertical stack they are next to each other on a horizontal plane. Sidebysides are harder to aim for new shooters, as the two barrels does not provide the same instinctive feedback as the single visible barrel of a semiautomatic or O/U. Modern production of SXS weapons is limited, in favor of O/U, and older weapons are usually not rated for steel shot, preventing their use on many shooting ranges.